C Programming - Structures, Unions, Enums - Discussion
Discussion Forum : Structures, Unions, Enums - Point Out Errors (Q.No. 5)
5.
Point out the error in the program?
#include<stdio.h>
int main()
{
struct emp
{
char name[20];
float sal;
};
struct emp e[10];
int i;
for(i=0; i<=9; i++)
scanf("%s %f", e[i].name, &e[i].sal);
return 0;
}
Answer: Option
Explanation:
At run time it will show an error then program will be terminated.
Sample output: Turbo C (Windows)
c:\>myprogram
Sample
12.123
scanf : floating point formats not linked
Abnormal program termination
Discussion:
27 comments Page 1 of 3.
Rajesh Manem said:
1 decade ago
Some compilers for small machines, including Turbo C (and Ritchie's original PDP-11 compiler), leave out floating point support if it looks like it will not be needed. In particular, the non-floating-point versions of printf and scanf save space by not including code to handle %e, %f, and %g. It happens that Turbo C's heuristics for determining whether the program uses floating point are insufficient, and the programmer must sometimes insert an extra, explicit call to a floating-point library routine to force loading of floating-point support.
Ravindra bagale said:
1 decade ago
In pc floats are computed through some hardware implementation, i.e.floating point units. When you uses array of structure which contains float values, then this error will come. This error comes because of the format of value -storage of structure.
We can remove this error by explicitly calling the floating point format linker.
Solution is- add following code in your source file, don't call it, it automatically get call when error arises.
static void forcefloat(float *p)
{
float f = *p;
forcefloat(&f);
}
We can remove this error by explicitly calling the floating point format linker.
Solution is- add following code in your source file, don't call it, it automatically get call when error arises.
static void forcefloat(float *p)
{
float f = *p;
forcefloat(&f);
}
Venkatesh said:
1 decade ago
Hi all,
What does "Floating point formats not linked, abnormal program termination mean" ?
Does it mean the usage of data type is being decided by the compiler rather than the user?
What does "Floating point formats not linked, abnormal program termination mean" ?
Does it mean the usage of data type is being decided by the compiler rather than the user?
Sanjeev said:
1 decade ago
&e[i].sal will return an address which is an int and we are using %f in printf to print this is the reason for having floating point format not linked error.
Pratyush sharma said:
3 years ago
According to the GCC compiler, this program is right having no error, and it will scan you 9 entries of name and 9 entries of salary. Hope you got it.
(1)
Kumarachary said:
1 decade ago
void linkfloat(float *p)
{
float a=0,*b;
b=&a;
a=*b;
}
This code causes emulatore to be linked and suppress the warning-variable not found.
{
float a=0,*b;
b=&a;
a=*b;
}
This code causes emulatore to be linked and suppress the warning-variable not found.
Surender said:
1 decade ago
Please friend don't use Turbo C IDE/Compiler.
Its not a standard complier.
Better you use borland C++, Visual C++, GCC.
Its not a standard complier.
Better you use borland C++, Visual C++, GCC.
Abhinandan said:
1 decade ago
The program runs fine when float is changed to int, can't get whats the problem with float.
Waiting for an answer.
Waiting for an answer.
Prakash said:
1 decade ago
Did it in gcc? float value is changed?
Input-vector
22.6245.
Output- vector
0.0022.6245 0.00..
Input-vector
22.6245.
Output- vector
0.0022.6245 0.00..
Novice_user said:
1 decade ago
When run with gcc it shows no error and the program runs fine.
Why there is linking problem in Turbo C??
Why there is linking problem in Turbo C??
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